Boat hull



FIG. 1 is a front and top perspective view of a boat hull showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side view being a mirror image of that shown;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a boat hull, as shown and described. 